Double window construction



Feb. 1,1938; WOWEN 2,106,900

DOUBLE WINDOW CONSTRUCTION Filed April 27, 1937 2 Sheets-Sheet '2 //v VE'IV TOR M1. 1. [HM O WEN 77- ORA/EPIT- Patented set. i, was

stars Application April 27, 1937, Serial No. 139,239

8 Claims.

The invention relates to a double window construction involving the use of two spaced panes of glass with the space between the sheets sealed against communication with the atmosphere:

The window is of the type which may be opened to permit the cleaning of the inner faces of the glass sheets or to permit the ready replacement of one or both sheets in case of breakage, and in which each sheet is seated and'secured in its own frame, one of which is fixed and'the other movable. One of the objects of the .invention is the provision of a structure of the kind specified having improved means for securing the movable frame releasably in the fixed or stationary frame, with the sealing and spacing means between the glassy sheets under compression without the use of screws, thus facilitating the rapid and convenlent assembling and disassembling of the two frames. A further object is the provision of a very compact simple structure permitting the use of frames which are not too heavy and bulky for use in ordinary wood sash. A still further object is the provision of improved means for securely, but releasably, holding each sheet of glass in its individual frame by wedge means which are easily positioned and removed and which act as the sealing and spacing means for the glass sheets so that the labor of applying a separate spacing and sealing means and holding it in position during assembly is avoided and the wedge means are more securely held in place than would otherwise be the case. Certain embodiments of the invention are illustrated in the accompanying drawings, wherein: Y

Figural is aside elevation. Fig. '2 is a section on an enlarged scale on the line II-II of Fig. 1. And Figs. 3 to 6' aresections similar to that of Fig. 2 showing modifications.

Referring to Figs. 1 and 2, the reference numerals 1 and 8 designate a pair of glass sheets which are spaced apart to provide the insulating space 9. The glass sheet I is mounted in a metal frame l0 and the glass sheet 8 is mounted in a separate frame it which fits into a rabbet or recess in the frame It], as indicated in Fig. 2, the two frames being releasably clamped together, as later described. A unitary structure is thus provided which may be clamped in a car frame or seated in a wood sash of ordinary construction, such as the member I2 of Fig. 2.

The edges of the glass sheets are cushioned in the recesses in the frames l0 and H by means of the usual rubber strips l3 and I4 and each frame is provided with an integral ledge l5 which holds the glass sheet against outward. movement relative to the frame. The glass sheet I is clamped in positionin its frame by wedge shaped strips l6 of rubber or other suitable yielding material. The wedge :fits down into a recess ll in the frame it and whenpushed down tightly into position provides a secure means for anchoring the glass sheet in its frame when the movable frame H is removed. ,The wedge is preferably of relatively well vulcanized rubber so that it presents an adequate degree of resistance against any movement of the glass sheet l to the right before the application of the-movable frame it.

The glass sheet 8 in the movable frame ii is I secured in position by means of a wedgestrip whose lower portion 118 is shaped similar to the wedge it, but which has integral with its upper portion a sealing and spacing strip it. when the frames are clamped together, this strip is is placed undencompression between the faces of the glass sheets and seals on the space 9 from the atmosphere. This sealing member with its wedge portion l B is preferably made in one molded piece extending clear around the window so that there .are no joints tending to permit leakage. The member is preferably formed of rubber having two different degrees of vulcanization, so that the wedge portion is is of harder rubber than the sealing portion is. This is desirable as strength against shearing is desirable in. the

wedge portion and softness for sealing purposes is desirable in the rectangular portion it. v

The two frames i0 and it are locked in. assembled relation with the sealing member 19 under compression by means of a wire 26 which fits into a cam recess 2i which is located at the joint between the frames it and ii and is so formed that it lies partly in each frame member. When the wire is forced into the position shown, it

forces the frame It inward, compressing the sealing strip l9. The entrance of the slot is of somewhat less width than the diameter of'the wire so that, after the wire is forced into position, it is locked against accidental removalfrom such position. The wire may be in one length which extends clear around the periphery of the window or it may be in a plurality of sections. It provides a means for securely clamping the frame sections together without the use of screws or other similar holding devices which add to the expense of a device of this kind and make the operation of assembling and disassembling relatively tedious. I

When it becomes necessary to take the frame apart for cleaning the inner surfaces'of the panes or for replacement of one of the panes, the wire 20 is easily released by grasping it at one end with a suitable tool and progressively detaching it from the cam groove. This clears the way for the removal of the frame I I and when such frame is removed, the spacing and sealing strip is comes with it,'because of its attachment to the wedge portion l8. There is some tendency of a sealing strip of this kind to stick to the glass sheets, but because of the relatively firm attachment of the strip to the frame II by means of the wedge portion I8, the strip will always free itself without difliculty from the pane 1. When it becomes necessary to reassemble the two frames after a cleaning operation, the sealing strip is still properly positioned for reuse and no time is lost in positioning it, such as is the case when the sealing strip is a separate and independent member. The securing means comprising the wedges l6 and I8 also insure that the glass sheets will be adequately maintained in their frames when the two frames are separated.

The foregoing describes the construction in which the frame I l is removable from the frame Hi. In many cases, it is desirable'that the frame ll, instead of being entirely removable, should merely be hinged with respect to the frame Ill, and this construction is illustrated in Fig. 3. In this case, a piano hinge 22 is located in that portion of the cam groove 2| located along one side of the window, such side being ordinarily the lower one. The hinge is provided with the two sets of flanges 23 and 24, which are secured to the frames l0 and II by means of the screws 25. This provides a hinge connection which is neat in appearance and does not project outside the face of the frame II. It will be understood that the other portions of the cam groove on the other three sides of the window carry a locking wire similar to the wire 20. The wire 20 may be of copper or lead or some other suitable composition, preferably somewhat flexible, but if desired, it is possible to use some other form of strip of circular cross section, such as a wire surrounded by a coating of rubber or fibrous material. It is also possible to use a cord of hard, closely graded composition which is sufliciently unyielding to provide the necessary compression upon the sealing strip when it is forced into position in the cam slot.

Fig. 4 illustrates a modification very similar to the one heretofore described except that the frame members 26 and 21 are secured together by means of the clamping screws 28 instead of by the locking wire of the construction hereto- Y fore described. A number of these screw members are distributed around the frame in properly spaced relation and each carries at its outer end a lock nut 29 which fits in a recess in the frame 21. The screw member is provided at its inner end with a locking toe 30 cooperating with a camv surface formed in the frame 26 so that when the member 28 is turned,'the frame 21 is clamped against the frame 26 and the spacing strip II is placed under compression. The .membei' 28 is locked in this position by means of the nut 29 which is provided with suitable means on its end whereby it may be turned into clamping relation.

The member 28 is provided at its outer end. with the kerf 32' to receive a turning tool, such as a screw driver. a

Fig. 5 illustrates a modification which differs from that of Figs. 2 and 3 in that the wedge 33 which is next to the glass 1 in the stationary frame carries the sealing and spacing strip 34. The other wedge 35 holds the pane 8 00";-

" a slight reversal as compared with that of Fig. 2.

Fig. 6 illustrates a further modification, in

which the glass sheets 1 and 8 in the frame mem- I bers l0 and I I are held in position by wedges 36 and 31 which are of similar construction and fit into wedge-shaped recesses in the frames the same as in the constructions heretofore described. In this construction, the upper portions of the wedges 36 and 31 are somewhat thicker than in the constructions heretofore described, so that when the frame II is clamped in position by means of the wire 20, the upper ends of the wedges engage each other and are placed under compression, thus forming a seal, so that a sealing strip, such asthe member ll] of Fig. 2 is not required. This renders the structure somewhat simpler and cheaper. In this construction, as in the others, the lower portions of the wedges are preferably made of rubber which is harder than wedgm 36 and 31 in one piece soihat no joints,

are present in the sealing portion of the device. What I claimis: 1. In combination in a double window, a stationary frame provided with a rabbet on one side and with an inwardly extending flange on its other side, a glass sheet fitting in the frame with itsedges in opposition to said flange, releasable -means carried by the frame and engaging the sheet at its edge in opposition to said flange, a

movable frame fitting in said rabbet in the stationary frame provided with an inwardly extending flange on one side thereof, a glass sheet fitting in the movable frame with its edges in opposition to the flange thereon, releasable means carried by the movable frame and eng g the sheet at its edge in opposition to said last flange, a cam recess extending around the frames at the outer edges of the movable frame and lying partly in such frame and partly in the stationary frame, yielding spacing and sealing means between the glass sheets at their edges, and a removable strip in said cam recess locking the frames together and maintaining said spacing and sealing means and with an inwardly extending flange on its other side, a glass sheet fitting in the frame with its edges in opposition. to said flange, releasable means carried by the frame and engaging the sheet at its edge in opposition to said flange, a movable frame fitting in said rabbet in the stationary frame providedwith an inwardly extending flange on one side thereof, a glass sheet fitting in the movable frame with its edgesin pposition to the flange thereon, releasable means carried by the movable frame and engaging the sheet at its edge in opposition to said last flange, a cam recess extending around the frames-at the outer edges of the movable frame and lying partly in such frame and partly in the stationary frame, yielding spacing and sealing. means between the glass sheets at their" edges, and a removable strip of, circular cross section in said cam recess locking the frames together and maintaining said spacing and sealing means under compression.

3. Incombination in a double window, a stationary frameprovided with a rabbet on one side and with an inwardly extending flange on its other side, a, glass sheet fitting in the frame with its edges in opposition to said flange, releasable means carried by the frame and engaging the sheet at its edge in opposition to said flange, a movable frame fitting in said rabbet in the stationary frame provided with an inwardly extending flange on one side thereof, a glass sheet fitting in the movable frame with its edges in opposition to the flange thereon, releasable means carried by the movable frame and engaging the sheet at its edge in opposition to said last flange, a cam recess extending around the frames at the outer edges of the movable frame and lying partly in such frame and partly in the stationary, frame, yielding spacing and sealing means between the glass sheets at their edges, and a removable wire in said cam recess'locking the frames together and maintaining said spacing and sealing means under compression.

4. In combination in a double window, a stationary frame provided with a rabbet on one side and with an inwardly extending flange on its other side, a glass sheet fitting in the frame'withv its edges in opposition to said flange, releasable means carriedby the frame and engaging thesheet at its edge in opposition to said flange, a

movable frame fitting in said rabbet in the stationary frame provided with an inwardly extending flange on one side thereof, a glass sheet fitting in the movable frame with its edges in opposition to the flange thereon, releasable means carried by the movable frame and engaging the sheet at its edge in opposition to said last flange, a cam recess extending around the frames at the outer edges of the movable frame and lying partly in such frame and partly in the stationary frame, yielding-spacing and sealing means between the glass sheets at their edges, a hinge connection between the two frames lying in the cam groove along one side of the window and a removable strip in other portions of said groove locking the frames against relative movement.

5. In combination in a double window a stationary frame provided with a rabbet on one side and with an inwardly extending flange on its other side, a glass sheet fitting in the frame with its edges in opposition to said flange, wedge means of yielding material fitting removably into the frame with the outer portion thereof engaging the inner face of the glass sheet in opposition to said flange, a movable frame fitting in said rabbet in the stationary frame provided with an inwardly extending flange, a glass sheet fitting in the movable frame with its edges back of ,said last flange, wedge means of yielding material fitting removably into the movable frame with the outer portion thereof engaging the inner face of the second glass sheet in opposition to the flange on the movable frame, and releasable means securing the movable frame in position in the stationary frame.

6. In combination in a double window, a stationary frame provided with a rabbet on one side and with an inwardly extending flange on its other side, a glass sheet fitting in the frame with its edges in opposition to said flange, wedge means of yielding material fitting removably into the frame with the outer portion thereof engaging the inner face of the glass sheet in opposition to said flange, a movable frame fitting in said rabbet in the stationary frame provided with an inwardly extending flange, a glass sheet fitting in the movable frame with its edges back of said last flange, wedge means of yielding material fitting removably into the movable frame with the outer portion thereof engaging the inner face of the second glass sheet in opposition to the flange on the movable frame, sealing and spacing means integral with the outer portion of one of said wedge means engaging the inner faces of the sheets, and releasable means for securing the movable frame in position in the stationary frame with said sealing and spacing means under compression.

7. In combination in a double window, a stationary frame provided with a rabbet on one side and with an inwardly extending flange on its other side, a glass sheet fitting-in the frame with its edges in opposition to said flange, wedge means of rubber composition fitting removably into the frame with the outer portion thereof engaging the inner face of the glass sheet in opposition to said flange, a movable frame fitting in said rabbet in the stationary frame provided with an inwardly extending flange, a glass sheet fitting in the movable frame with its edges back of said last flange,

means under compression, said sealing and spacing means being of softer rubber than the wedge means with which it is integral.

3. In combination in a double window, a stationary frame provided with a rabbet on one side and with an inwardly extending flange on its other side, a glass sheet fitting in the frame with its edges in opposition to said flange, wedge means" of yielding material fitting removably into the frame with the outer portion thereof engaging the inner face of the glass sheet in opposition to said flange, a movable frame fitting in said rabbet in the stationary frame provided with an inwardly extending flange, a glass sheet fitting in the movable frame with its edges back of said last flange, wedge means of yielding material fitting removably into the movable frame with the outer portion thereof engaging the inner face of the second glass sheet in opposition to the flange on the movable frame, and releasable means for securing the movable frame in position in the stationary frame with the upper ends of the two wedge means under compression one against the other so as to form a seal for the space between the glass sheets.

WILLIAM OWEN. 

